While logging on from the host onto the guest server I get the below error:
Host:/=> sudo ssh client Password: PTY allocation request failed on channel 0
When checked on the client syslogs the error is:
ct 18 13:25:37 sshd[12487]: error: openpty: No such file or directory Oct 18 13:25:37 sshd[12487]: error: session_pty_req: session 0 alloc failed
Actions taken:
1) Rebooted the server
2) Created the pty files
3) Checked /dev/pty directory permission all seem to be OK
4) Check the kctune parameters and kcusage parameters they all are ok
kcusage |grep pty
npty 0 / 256
nstrpty 0 / 256
This server was recently recovered after SAN issue related to OS disk. Please provide your valuable inputs to resolve this issue.